Lighting apparatus

Abstract

A lighting apparatus is designed for connecting to an external signal wire. The external signal wire has an end electrode. The lighting apparatus has a light housing, multiple LED chips, a driver component, a printed circuit board, a socket and an elastic clip. The light housing has a light opening and a back cover. The back cover has a cover entrance. The printed circuit board is used for mounting the plurality of LED chips and the driver component. The socket has a guiding entrance aligning with the cover entrance. The end electrode of the external signal wire is inserted into the guiding entrance. The elastic clip has a clip part and an extended part. The extended part is electrically connected to the driver component. The clip part clips the end electrode for forming an electrical connection to the driver component via the extended part.

The invention claimed is: 
     
       1. A lighting apparatus, for connecting to an external signal wire, the external signal wire having an end electrode, comprising:
 a light housing having a light opening and a back cover, the back cover having a cover entrance; 
 a plurality of LED chips; 
 a driver component; 
 a printed circuit board for mounting the plurality of LED chips and the driver component; 
 a socket having a guiding entrance aligning with the cover entrance, the end electrode of the external signal wire being inserted into the guiding entrance; and 
 an elastic clip having a clip part and an extended part, the extended part being electrically connected to the driver component, the clip part clipping the end electrode for forming an electrical connection to the driver component via the extended part, wherein the light housing further has a rim and a surrounding wall, a first peripheral edge of the surrounding wall is connected to the back cover, the light opening is at a center of the rim, the rim is connected to a second peripheral edge of the surrounding wall, wherein the clip part and the extended part are made of metal material, the clip part comprises a pair of clips facing to each other and defining a clipping entrance deformed when the end electrode is inserted into the clip entrance to fix the end electrode, wherein the elastic clip has a clip housing to be disposed on the printed circuit board, wherein the clip housing has a top part and a bottom part disposed on opposite sides of the printed circuit board, the clip part is enclosed by the top part and the bottom part of the clip housing. 
 
     
     
       2. The lighting apparatus of  claim 1 , wherein the external signal wire comprises a power line. 
     
     
       3. The lighting apparatus of  claim 2 , wherein the external signal line further comprises a control signal line for transmitting a control signal to the driver component for sending a control signal from an external control device via the external signal line to the driver component to control the plurality of LED chips according to the control signal. 
     
     
       4. The lighting apparatus of  claim 3 , further comprising a converter module being selectively inserted into a section of the external signal line for providing an additional control signal to the driver component. 
     
     
       5. The lighting apparatus of  claim 4 , further comprising a converter module being selectively inserted into the external signal line for receiving a wireless signal and the control signal, the converter module converting the wireless signal to an additional control signal supplied to the driver component via the end electrode of the external signal line. 
     
     
       6. The lighting apparatus of  claim 1 , wherein an external surface of the heat sink engages an inner surface of the light housing for heat dissipation. 
     
     
       7. The lighting apparatus of  claim 1 , wherein the printed circuit board comprises an extending slot for plugging a function module providing an additional function to the driver component. 
     
     
       8. The lighting apparatus of  claim 1 , wherein the driver component and the plurality of LED chips are disposed on opposite sides of the printed circuit board. 
     
     
       9. The lighting apparatus of  claim 1 , wherein the printed circuit board has an extending slot for plugging a second light source module. 
     
     
       10. The lighting apparatus of  claim 9 , wherein the second light source module has a third driver component co-working with the driver component to control the second light source module. 
     
     
       11. The lighting apparatus of  claim 10 , wherein the third driver component replaces a control function of the driver component when the second light source module is plugged to the extending slot. 
     
     
       12. The lighting apparatus of  claim 1 , wherein the printed circuit board has a wire opening, the end electrode is inserted through a guiding entrance of the top part of the clip housing and then passes through the wire opening before being clipped by the clip part of the elastic clip. 
     
     
       13. The lighting apparatus of  claim 1 , wherein the light housing has a reflective cup made as an unibody portion of the light housing.